FM
Madas Technical Manual
- 6|6.3 - REV. 0 of 1
th
Oct 2018
• Tighten the nuts or bolts gradually, in a “cross” pattern (see the example below);
• Tighten them, first by 30%, then by 60% and finally 100% of the maximum torque (see the table below according to EN
13611);
Diameter
DN 65
DN 80
DN 100
DN 125
DN 150
> DN 150
Max. torque (N.m)
50
50
80
160
160
160
• Tighten each nut and bolt again clockwise at least once, until the maximum torque has been achieved uniformly;
• The filter can be installed in any position as long as the arrow, indicated on the body (
3
) of the appliance, faces the application;
• During installation, avoid debris or metal residues from getting into the device;
• To guarantee mechanical tension-free assembly, we recommend using compensating joints, which also
adjust to the pipe’s thermal expansion;
• If the device is to be installed in a ramp, it is the installer’s responsibility to provide suitable or correctly sized supports
to hold and secure the assembly. Never, for any reason whatsoever, leave the weight of the ramp resting only on the
connections (threaded or flanged) of the individual devices;
• In any case, following installation, check the tightness of the plant;
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3.4 GENERIC EXAMPLE OF AN INSTALLATION
1. M16/RM N.C. Manual reset solenoid valve
2. SM Jerk ON/OFF valve
3. FM gas filter
4. OPSO series MVB/1 MAX shut-off valve
5. RG/2MC pressure regulator
6. MVS/1 relief valve
7. Pressure gauge and relative button
8. Vent valve
9. Ball valve
10. Gas detector
11. SM remote jerk ON/OFF valve lever control
12. Expansion joint/anti-vibration mount
